Closed reduction of locked facets


Contraindicated if traumatic cervical disc herniation is demonstrated on MRI.

Cervical spine fracture-dislocations in neurologically intact patients represent a surgical challenge due to the risk of inflicting iatrogenic spinal cord compression by closed reduction maneuvers. The use of MRI for early advanced imaging in these injuries remains controversially debated.

The diagnostic evaluation of cervical fracture-dislocations should include advanced imaging by MRI in order to fully understand the injury pattern prior to proceeding with spinal reduction maneuvers which may impose the imminent threat of a devastating iatrogenic injury to the spinal cord. The presented staged management by initial Halo fixation without attempts for spinal reduction, followed by a surgical decompression and multilevel fusion, appears to represent a feasible and safe strategy for patients at risk of a delayed neurological injury 1).

Patients who cannot be assessed neurologically may be done using SSEP/MEP monitoring. Two methods of closed reduction:

Skull traction for closed reduction of locked facets


Halo-vest-assisted Z-shape elevating-pulling reduction appears to be a simple, safe, and effective technique for pre-operative reduction of lower cervical locked facets 2).


Unilateral facet joint dislocations of subaxial cervical spine are difficult to reduce when complicated with posterior facet fractures or ligamentous injury. Magnetic resonance imaging can be beneficial for identifying ventral and dorsal compressive lesions, as well as ligamentous or capsule rupture. The combination of posterior reduction and anterior fixation with fusion has advantages in terms of clinical safety, ease of operation, and less iatrogenic damage 3).

1)
Botolin S, VanderHeiden TF, Moore EE, Fried H, Stahel PF. The role of pre-reduction MRI in the management of complex cervical spine fracture-dislocations: an ongoing controversy? Patient Saf Surg. 2017 Sep 8;11:23. doi: 10.1186/s13037-017-0139-8. eCollection 2017. PubMed PMID: 28904564; PubMed Central PMCID: PMC5591568.
2)
Wang X, An W, Wu Q, Wu S, Li G, Zeng J, Chen Y, Yao G. Multicentre comparative study of Z-shape elevating-pulling reduction and skull traction reduction for treatment of lower cervical locked facets. Int Orthop. 2019 May;43(5):1255-1262. doi: 10.1007/s00264-018-4041-5. Epub 2018 Jul 9. PMID: 29987557.
3)
Zhou Y, Zhou Z, Liu L, Cao X. Management of irreducible unilateral facet joint dislocations in subaxial cervical spine: two case reports and a review of the literature. J Med Case Rep. 2018 Mar 21;12(1):74. doi: 10.1186/s13256-018-1609-z. PMID: 29558996; PMCID: PMC5861664.